Door-opener



B. BECKER.

DOOR OPENER.

APPLICATION FILED APR. 4, 1919.

'1 ,328,979, Patented Jan. 27, 1920.

//v ms/v TOR Ben 0mm Becker BENJAIVIIN BECKER, OF ST. LQUIS, MISSOURI.

DOOR-OPENER.

Specification of Letters Patent.

Patented Jan. 27, 1920.

Application filed April 4, 1819. Serial No. 287,448.

To all whom it may concern:

Be it known that I, BENJAMIN BECKER, a citizen of the U1 ited States,residing at St. Louis, in the State of Missouri, have invented certainnew and useful Improvements in Door-Openers, of which the following is aspecification containing a full, clear, and exact description, referencebeing had to the accompanying drawings, forming a part hereof.

My invention relates to an improved device for opening doors located ata distance from the operator, whether he be situated upstairs,downstairs, or on the same floor on which the door is located; and my invention consists in the novel construction and combination of partshereinafter fully described and particularly claimed.

The object of my present invention is to provide a cheap, simple, andreliable improvement upon the door opener shown and described in myUnited States Patent No. 1,267,307, dated May 21, 1918, which can bereadily applied to doors and door-locks already in use, as well as tonew ones.

A further object of my invention is to provide an especially simplecombined attaching and stop bracket, whereby the door-opening lever maybe quickly applied to the door-knob shank by means of a single screw.

In the drawings,

Figure l is a perspective view of a portion of a door and its lock,having my invention applied thereto.

Fig. 2 is a detail side-elevation of my improved door-opening leverapplied to the door and its lock, the shank of the door-knob being shownin section.

Fig. 3 is a detail edge-view of the same, looking toward the right-handedge of the device, shown in Fig. 2, and

Fig. 4 is a top plan-view of the same.

The numeral 1 designates any common door, say the front door of a fiator apartment, which is to be unlocked and opened by a person in the roomor hall above, or in the hall at a distance from said door, or severalfloors above or below the door.

The door 1 is fitted, as usual, with any suitable frame and easing 2,lock 8, having a bolt 3 whizh engages a keeper 4 on said door-frame, anddoor-knob, 5, having the usual shank 6 and re tanguar spindle 7.

Upon said shank 6 of said door-knob I 8, carrying at their lower orinner ends a' horizontal bar or pin 10 which is the pivot of said lever.

In this present illustration of my inven tion, the said pivot 10 restsdirectly against the said shank 6 of said doorknob, but is permitted tomove loosely thereon, or rather.

to rock loosely, by resting within a. bearing or recess 11 formed in theinner curved face of a combined attaching and stop bracket 12.

Said bracket 12 is quickly aflixed to the said door-knob shank 6 bymeans of a single screw 13 which passes through a hole in said bracketand is threaded so that its threaded portion reaches to and engages theusual threads of a perforation in said rectangular spindle 7, therebyfirmly securing both the bracket and the knob shank in position, asshown more clearly in Fig. 2.

Said bracket 12 has an integral stop-arm 14: which extends at one end ofsaid bracket in the path of the lower end of said lever, when said leveris moved toward the lefthand, in opening the door, and thereby acts as astop to limit said motion with respect to the bracket, and to cause thebracket to move (to turn the knob) as said motion continues.

On the left-hand of said lever 8 is formed a rounded portion 15, in thelower portion of which is a bore or spring-seat 15 in which is a. coilspring 16, the lower end of which extends beyond the inner end of saidportion 15 and rests in another spring-seat or recess 17 formed in theouter surface of said stoparm 14 of said bracket, so that said springwill return said lever to its normal position after the knob 5 has beenturned and said bolt 3 has been retracted from its keeper 4 by theaztion of said lever.

Said spring '16 also holds said lever yieldingly in its normal position,and thereby permits said bolt 3 to be retracted in turning the said knobby hand in a clockwise direct on, in the us'ial manner, Withoutdisturbing the position of said lever, which will remain in its normalposition when said knob is turned by direct contact of the hand.

The normal position of said lever S is that in which it is shown in thevarious views of the drawing.

An opening 19 is made in the inner end of said lever 8, between the saidparallel arms 10, to permit the insertion of the bracket, in assemblingthe devire, the portion of the braaket which carries said stop 1% beingmade sufliciently narrow to be passed through said opening.

A cord, chain, wire, or similar flexible member 18 has one of its endsattached to the eye 9 at the free end of the lever 8, and is thenextended to a common pulley 20 on the wall or door-casing of thebuilding, and from thence to another pulley 21, and thence to anotherpulley 22 located at a distance, or

at whatever point the operator may be stationed, where a suitable handle23 is attached to the operating end of said flexible member.

The operation of my invention will be readily understood without furtherdescription.

I do not limit myself to the exact form of the lever 8 and otherpartsshoWn in the drawing, nor do I limit myself to the exact size orproportions of said parts of the device, as it is apparent that the samemay be changed by skilled mechanics, Within the scope of my invention.

1 claim:

1. In a door opening device, a bracket having a. curved face adapted toengage a door knob shank, said bracket having an opening to receive aretaining screw and a lever stop-arm at one side, a lever pivoted tosaid bracket and having a stop to cooporate with said stop-arm, the stopon said lever being provided with a recess, a spring projecting intosaid recess at one end and abutting the stop-arm on the bracket at theother end, and means connected to the free end of said lever foractuating the same.

2. In a door opening device, the combination with the shank of adoor-knob, of a bracket having a curved face adapted to engage saidshank, and having at one side an integral lever stop-arm, a screw forfastening said bracket to the said shank, said bracket also havingformed in it a bearing for the pivot of an operating lever, said bracketalso having a spring-seat, a spring in said spring-seat, a lever havinga pivot at its inner end mounted in said bearing of said bracket, arounded portion forming a stop by contact with the said stop-arm,adjacent the inner end of said lever, said rounded portion having a.spring-seat formed in it in which the outer end of the said spring ismounted, and means connected to the free end oi the lever for actuatingthe same.

In testimony whereol I have signed my name to this specification in thepresence of two subscribing witnesses.

BENJAMIN BECKER.

